A J2EE servlet filter which compresses data written to the response. It supports several algorithms (gzip, deflate, etc.) and emphasizes minimal memory usage and high throughput. Also provides detailed performance stats.
Feel free to fork pjl-comp-filter on Github: https://github.com/nbartels/pjl-comp-filter

The HyperJournal is a free web application which enables on-line as well as printed publishing in an innovative and significantly cost-cutting way. The HyperJournal can be easily installed and managed without any out-of-the-ordinary IT-competence.

Power-packed cross-platform easy to use and install e-commerce solution. It does not require installation of other software because everything is included. It generates storefronts and marketing Froogle feeds. It also facilitates listing items on eBay.

XS PHP CMS (Content Management System) is a very flexible dynamic website engine for group of people as well
as single person, capable of building sites from several pages to several thousand. It is based on PHP, MySQL and XSPHPLib.

MetaSpace Portal is the new generation of tools to manage, generate, and maintain corporate web portals and their contents. MetaSpace Portal is Portlet Specification API JSR-168 compliant and it has a lot of advanced features to manage portals.

OpenRank seeks to value the performance of a website on the search engines using various metrics. It provides an overal metric, total # of backlinks, # unique linking domains, age of site, and more statistics SEOs find useful.

An RDF-based post content information system with associated APIs, used to provide intelligent information about the status and accessibility of a web document. Functionality: page re-directs, intelligent 404 handling, Threadneedle connectivity and other

WEBsent is a web service test and performance tool. It offers the user, via a client site hypertext browser, some tools and tests to check the performance and validity of his/her web server. WEBsent is designed to monitor webpages, content accessibility

<<< drive2gether >>> is an Open Source, free of charge, without advertisement on the website and being developed for NoN–commercial, Environmental purposes, Web-Platform based agency for arranged lifts.

The security proxy is a reverse proxy that hides and serves several webapps. It handles their authentication needs transparently (single sign-on), may be configured to impose HTTPS client connections (on URL basis) and rewrite URLs of content it delivers.